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has anyone had any luck removing the cats for some quick hp? if so what were the results? with so little bang for the buck does anyone know of any tricks to pull power out of this car? outside of spending $3500 4 cold air intake or $2000 for exhaust or any other over priced mod.

superchargers are $8,000 out of the question i just need to buy some time until the 07 m3 comes out.The cai and exhaust prices are dinan.I'm getting frustrated when these ricers are getting 500hp out of there cars for $5000. But yes i truly do realize how fortunate i realy am to own a m3(thank god).

chances are you wont get a lot out of performance mods, bmw has already done that, only thing for significant hp gains would be a supercharger. cai (gruppm for example) should be about $1000 i believe? most mods for e46 m3 are not for hp but for braking, suspension, and aerodynamics.

chances are you wont get a lot out of performance mods, bmw has already done that, only thing for significant hp gains would be a supercharger. cai (gruppm for example) should be about $1000 i believe? most mods for e46 m3 are not for hp but for braking, suspension, and aerodynamics.